Aqueous liquid of treatment agent for carbon fiber precursors, and carbon fiber precursor
US11866851B2 · kind B2 · utility
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Key dates
| Filing date | Oct 6, 2020 |
| Grant date | Jan 9, 2024 |
| Priority date | — |
| Expiry date | Oct 6, 2040 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01F9/21
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An aqueous liquid of a carbon fiber precursor treatment agent contains a carbon fiber precursor treatment agent and water, the carbon fiber precursor treatment agent containing an amino-modified silicone and a particular nonionic surfactant having a molecular weight distribution (Mw/Mn) of from 1.05 to 1.50. The amino-modified silicone may have a kinematic viscosity at 25° C. of 50 to 4,000 mm2/s. The carbon fiber precursor treatment agent is adhered to a carbon fiber precursor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.